package rt.crashmere.server.aop;

import cn.hutool.core.date.StopWatch;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.UUID;

/**
 * 请求响应日志 AOP
 *
 * @author Lwh
 * @time 2023/01/24 16:43
 */
@Aspect
@Component
@Slf4j
public class LogInterceptor {

    /**
     * 执行拦截
     */
    @Around("execution(* rt.crashmere.server.controller.*.*(..))")
    public Object doInterceptor(ProceedingJoinPoint point) throws Throwable {
//        计时
        StopWatch stopWatch = new StopWatch();
        stopWatch.start();
//        获取请求路径
        RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes();
        HttpServletRequest httpServletRequest = ((ServletRequestAttributes) requestAttributes).getRequest();
//        生成唯一请求 id
        String requestId = UUID.randomUUID().toString();
        String url = httpServletRequest.getRequestURI();
//        获取请求参数
        Object[] args = point.getArgs();
        String reqParam = "[" + StringUtils.join(args, ", ") + "]";
//        输出请求日志
        log.info("request start，id: {}, path: {}, ip: {}, params: {}", requestId, url,
                httpServletRequest.getRemoteHost(), reqParam);
//        执行原方法
        Object result = point.proceed();
//        输出响应日志
        stopWatch.stop();
        long totalTimeMillis = stopWatch.getTotalTimeMillis();
        log.info("request end, id: {}, cost: {}ms", requestId, totalTimeMillis);
        return result;
    }
}
